docs: def scheduled():
      '''
      List scheduled jobs.
      '''
      for job in sorted(schedulables(), key=lambda s: s.name):
          for task in PeriodicTask.objects(task=job.name):
              label = job_label(task.task, task.args, task.kwargs)
              echo(SCHEDULE_LINE.format(
                  name=white(task.name.encode('utf8')),
                  label=label,
                  schedule=task.schedule_display
              ).encode('utf8'))